1SVR740774R3300 ABB Control Industrial Automation Components

ABB 1SVR740774R3300 is a control relay designed for phase failure, sequence, and unbalance monitoring in 3-phase systems with adjustable thresholds. It features phase failure detection, phase sequence monitoring, phase unbalance detection, and an ON-delay trip timer. The relay has DPDT (Double Pole Double Throw) - 2C/O contacts, with a housing speed rating of IP50 and terminal speed rating of IP20. The communication protocol measures 85.6 mm, with a net height of 4 kV, rated impulse voltage (Uimp) of 22.5 mm, and protection functions rated at 600 V. The rated insulation voltage (Ui) is 103.7 mm, and it operates with a control voltage (AC) on a DIN rail. The UPC code corresponds to a control voltage of 400Vac with 18 VA consumption. It supports normally closed (NC) auxiliary contacts for both flexible and rigid wires of sizes 0.5-1.5mm2 or 20-16AWG. The operating frequency is 50/60 Hz, with a supply voltage ensuring 100,000 operations. The relay's contacts are made from a Silver-Nickel alloy (Ag/Ni) and are cadmium-free (Cd-free), with analog outputs supporting 30,000,000 operations. The frame current rating at 400Vac is 0.025 A, and it features a yellow LED for control/supply voltage presence, a green LED for timer activity, and 2 x red LEDs for fault indication. The tripping curve is adjustable from 0.1-30 s, with a trip unit type of spring and a minimum operating temperature of -25°C. The control circuit rated current is 4 A at 230Vac for AC-12, 3 A for AC-15, and 4 A at 24Vdc for DC-12, with 2 A for DC-13. The maximum temperature tolerance is +60°C, with a short circuit current breaking capacity (Icn) and protection settings designed for robust operation. The processing time, measurement function, and operating rate are optimized for (L-L) 300-500Vac applications.